/Engine/Source/Editor/UnrealEd/Public/FileHelpers.h
Unloads a list of packages
static void UnloadPackages ( const [TArray](API\Runtime\Core\Containers\TArray)< [UPackage](API\Runtime\CoreUObject\UObject\UPackage) * > & PackagesToUnload, bool & bOutAnyPackagesUnloaded, [FText](API\Runtime\Core\Internationalization\FText) & OutErrorMessage )